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- Title
Activated Carbon from Melamine-Impregnated Paper.
- Authors
Yaokun Zhang; Xiuyi Lin; Chuanshuang Hu; Hong Yun
- Abstract
Activated carbon was prepared from waste melamine-impregnated paper (MIP) by pyrolysis with activation by NaOH. The adsorption parameters such as carbonization temperature (300, 350, 400, 450 °C), NaOH to C ratio (2:1, 3:1, 4:1, 5:1), and initial methylene blue (MB) dye concentration (20 to 600 mg/L) were studied. The adsorption results were fit by the Langmuir isotherm model and pseudo-second order kinetics. It was found that the activated carbon from MIP had a maximum adsorption capacity of 497 mg/g at 400 ℃ (carbonization temperature) and NaOH to C ratio (2:1). The highest removal of methylene blue (MB) via activated carbon was 99.4%. The p-p interaction between dye molecules and MIP active carbon was proposed to be a primary driving force for dye adsorption. This activated carbon adsorbent based on MIP was shown to be highly promising for water decontamination applications.
- Subjects
ACTIVATED carbon; METHYLENE blue; WASTE paper; LANGMUIR isotherms; ADSORPTION capacity; CARBONIZATION
- Publication
BioResources, 2023, Vol 18, Issue 1, p1128
- ISSN
1930-2126
- Publication type
Article
- DOI
10.15376/biores.18.1.1128-1140